Hi All,
I am new to the forum and could use some help with my UOA report. My rig is a 2011 LML with roughly 17,000 miles. I ran T6 for just under 3k miles and changed the oil to get my sample, to baseline this engine for testing and hopefully to extent my OCI. However, the results have me somewhat worried as Blackstone called out several areas to watch.
I took my sample cold and did not know better until after the sample was in. I know there is a ton of knowledge on this board and hope to get some insight on my numbers. I have ordered a vacuum pump for the next sample and will take that hot. I did let about half the oil drain before taking this first sample but again it was cold.
"Comments: A few wear metals are on the high side in this sample from your GMC. Aluminum normally shows piston wear, but could be from other sources too, especially since chrome from rings is nice and low. Potassium can show coolant, but we sometimes see it along with potassium in newer diesels. It can come from the emissions system in that case. Iron is from steel parts and copper is from brass/bronze parts. Universal averages show typical wear levels for this type of engine after about 7,000 miles on the oil. The TBN was strong at 5.1. Run 3,000 miles again and check back.
Aluminum 23
Chromium 1
Iron 30
Copper 27
Lead 2
Tin 0
Molybdenum 23
Nickel 0
Manganese 1
Silver 0
Titanium 0
Potassium 69
Boron 34
Silicon 14
Sodium 9
Calcium 1366
Magnesium 1004
Phosphorus 1133
Zinc 1350
Barium 0
Properties are all in line. And I did not add any oil before the sample. Sorry for the long post. Again, any input is appreciated.
I am new to the forum and could use some help with my UOA report. My rig is a 2011 LML with roughly 17,000 miles. I ran T6 for just under 3k miles and changed the oil to get my sample, to baseline this engine for testing and hopefully to extent my OCI. However, the results have me somewhat worried as Blackstone called out several areas to watch.
I took my sample cold and did not know better until after the sample was in. I know there is a ton of knowledge on this board and hope to get some insight on my numbers. I have ordered a vacuum pump for the next sample and will take that hot. I did let about half the oil drain before taking this first sample but again it was cold.
"Comments: A few wear metals are on the high side in this sample from your GMC. Aluminum normally shows piston wear, but could be from other sources too, especially since chrome from rings is nice and low. Potassium can show coolant, but we sometimes see it along with potassium in newer diesels. It can come from the emissions system in that case. Iron is from steel parts and copper is from brass/bronze parts. Universal averages show typical wear levels for this type of engine after about 7,000 miles on the oil. The TBN was strong at 5.1. Run 3,000 miles again and check back.
Aluminum 23
Chromium 1
Iron 30
Copper 27
Lead 2
Tin 0
Molybdenum 23
Nickel 0
Manganese 1
Silver 0
Titanium 0
Potassium 69
Boron 34
Silicon 14
Sodium 9
Calcium 1366
Magnesium 1004
Phosphorus 1133
Zinc 1350
Barium 0
Properties are all in line. And I did not add any oil before the sample. Sorry for the long post. Again, any input is appreciated.
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